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Introduced in 1985 by Intelligent Systems Corp. 
The Datavue products were revolutionary, a 12-pounds portable made by Sortec of Japan called the Datavue 25
As portable as a briefcase. It's low weight, and optional battery pack, make it an ideal companion for the business person on the go. 
It runs on Microsoft DOS and BASIC. 

• CPU; 80C86 
• RAM; 640K
• Disk drive; 51/4 inch drive plus a unique internal RAM disk with up to 360K memory.
• Optional add-on disk drive.
• Display; LCD, 80 column, 25 line screen.
• Keyboard; detachable cordless 83 keys.
• Serial and parallel connections.
• Optional add-on expansion chassis.
• SN; 510200138